E-mails as I'm unable to return any replys to you. They always come back as undeliverable mail. For your car, I would have the center driveshaft bearing looked at closely with the car on a service lift, while in gear, rolling along at a low speed. Sound like you've covered just about everything that's common on the Seven.
Put it up in the air again and have a slow look around with the wheels/speedo running only as fast as needed. Good luck